:root {
    --bg-dark: #0a0e17;
    --bg-panel: #10161f;
    --blue: #2f8fe0;
    --green: #35d488;
    --text-light: #e8edf5;
    --text-muted: #9aa7bb;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: "Segoe UI", Roboto, Arial, sans-serif;
    background: var(--bg-dark);
    color: var(--text-light);
}

a { color: inherit; }

/* ---- Hero / banner ---- */

.hero {
    position: relative;
    display: flex;
    flex-direction: column;
    background-color: var(--bg-dark);
    background-image:
        linear-gradient(180deg, rgba(10,14,23,0.55) 0%, rgba(10,14,23,0.85) 100%),
        radial-gradient(circle at 15% 25%, rgba(53,212,136,0.18), transparent 40%),
        radial-gradient(circle at 85% 75%, rgba(47,143,224,0.20), transparent 45%),
        repeating-linear-gradient(0deg, rgba(255,255,255,0.03) 0 1px, transparent 1px 48px),
        repeating-linear-gradient(90deg, rgba(255,255,255,0.03) 0 1px, transparent 1px 48px);
    overflow: hidden;
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.2rem 2rem;
    position: relative;
    z-index: 2;
}

.logo-mini {
    font-weight: 800;
    letter-spacing: 0.05em;
    font-size: 1.2rem;
    background: linear-gradient(90deg, var(--blue), var(--green));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.nav-links a {
    margin-left: 1.8rem;
    text-decoration: none;
    color: var(--text-muted);
    font-size: 0.95rem;
    letter-spacing: 0.03em;
    transition: color 0.2s ease;
}

.nav-links a:hover { color: var(--text-light); }

.lang-switch {
    display: flex;
    gap: 0.4rem;
}

.lang-link {
    text-decoration: none;
    color: var(--text-muted);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    padding: 0.15rem 0.4rem;
    border-radius: 0.25rem;
    border: 1px solid transparent;
    transition: color 0.2s ease, border-color 0.2s ease;
}

.lang-link:hover { color: var(--text-light); }

.lang-link.lang-active {
    color: var(--blue);
    border-color: var(--blue);
}

.hero-content {
    position: relative;
    z-index: 2;
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 1.5rem 1rem 2rem;
}

.hero-stack {
    position: relative;
    display: grid;
    place-items: center;
    width: min(96vw, 1100px);
    min-height: 260px;
    margin-bottom: 0.5rem;
}

.hero-stack > * {
    grid-area: 1 / 1;
}

.hero-visual {
    position: relative;
    width: 100%;
    height: 260px;
    z-index: 1;
}

.hero-text {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    pointer-events: none;
}

.scene {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    animation: sceneCycle 16s infinite;
}

.scene-hw          { animation-delay: 0s; }
.scene-fw          { animation-delay: -4s; }
.scene-sw          { animation-delay: -8s; }
.scene-integration { animation-delay: -12s; }
.scene-saia        { animation-delay: -16s; }

@keyframes sceneCycle {
    0%   { opacity: 0; }
    4%   { opacity: 1; }
    16%  { opacity: 1; }
    20%  { opacity: 0; }
    100% { opacity: 0; }
}

.icon-svg { width: 100%; height: 100%; display: block; }

/* Rendszertervezés icon: UML class diagram */

.uml-class {
    fill: var(--bg-panel);
    stroke: var(--blue);
    stroke-width: 2;
}

.uml-interface {
    fill: var(--bg-panel);
    stroke: var(--green);
    stroke-width: 2;
    stroke-dasharray: 5 3;
}

.uml-divider {
    stroke: var(--blue);
    stroke-width: 1;
    opacity: 0.6;
}

.uml-field {
    stroke: var(--text-muted);
    stroke-width: 2;
    stroke-linecap: round;
    opacity: 0.85;
}

.uml-connector {
    stroke: var(--green);
    stroke-width: 2;
    filter: drop-shadow(0 0 3px rgba(53,212,136,0.6));
}

.uml-connector-dashed {
    stroke: var(--blue);
    stroke-width: 2;
    stroke-dasharray: 5 3;
    filter: drop-shadow(0 0 3px rgba(47,143,224,0.5));
}

.uml-triangle {
    fill: var(--bg-panel);
    stroke: var(--blue);
    stroke-width: 2;
}

.uml-diamond {
    fill: var(--bg-panel);
    stroke: var(--green);
    stroke-width: 2;
}

/* HW icon: PCB with drilled via holes */

.pcb2-board {
    fill: var(--bg-panel);
    stroke: var(--blue);
    stroke-width: 2;
}

.pcb2-ic-outline {
    fill: none;
    stroke: var(--green);
    stroke-width: 1.5;
    stroke-dasharray: 4 2;
}

.pcb2-pin line {
    stroke: var(--green);
    stroke-width: 2;
}

.pcb2-trace {
    fill: none;
    stroke: var(--blue);
    stroke-width: 2.5;
    stroke-linecap: round;
    filter: drop-shadow(0 0 3px rgba(47,143,224,0.5));
}

.pcb2-vias circle {
    fill: var(--green);
    filter: drop-shadow(0 0 4px rgba(53,212,136,0.7));
}

.pcb2-vias .hole { fill: var(--bg-dark); filter: none; }

/* FW icon: chip + flash */

.fw-chip-body {
    fill: var(--bg-panel);
    stroke: var(--blue);
    stroke-width: 2;
}

.fw-pins line {
    stroke: var(--blue);
    stroke-width: 3;
}

.fw-bolt {
    fill: var(--green);
    filter: drop-shadow(0 0 6px rgba(53,212,136,0.9));
}

/* Rendszerintegráció icon: meshing gears (HW/SW/mobile) */

.gear-teeth rect, .gear-teeth-sm rect {
    fill: var(--bg-panel);
    stroke: var(--blue);
    stroke-width: 1.5;
}

.gear-body {
    fill: var(--bg-panel);
    stroke: var(--blue);
    stroke-width: 2;
    filter: drop-shadow(0 0 3px rgba(47,143,224,0.4));
}

.gear-glyph-outline {
    fill: none;
    stroke: var(--green);
    stroke-width: 2;
}

.gear-glyph-fill, .gear-glyph-fill-line {
    fill: var(--green);
    stroke: var(--green);
    stroke-width: 2.5;
    stroke-linecap: round;
    filter: drop-shadow(0 0 3px rgba(53,212,136,0.6));
}

/* SAIA PLC icon: rack module */

.saia-case {
    fill: var(--bg-panel);
    stroke: var(--blue);
    stroke-width: 2;
}

.saia-screen {
    fill: rgba(53,212,136,0.18);
    stroke: var(--green);
    stroke-width: 1;
}

.saia-terminals rect {
    fill: var(--bg-dark);
    stroke: var(--green);
    stroke-width: 1;
}

.saia-led {
    fill: var(--green);
    filter: drop-shadow(0 0 5px rgba(53,212,136,0.9));
    animation: ledBlink 1.6s ease-in-out infinite;
}

.saia-led-2 {
    fill: var(--blue);
    filter: drop-shadow(0 0 5px rgba(47,143,224,0.9));
    animation-delay: 0.8s;
}

/* code scene */

.code-window {
    width: 100%;
    max-width: 220px;
    background: var(--bg-panel);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 0.4rem;
    overflow: hidden;
    box-shadow: 0 0 20px rgba(47,143,224,0.15);
    text-align: left;
}

.code-header {
    display: flex;
    gap: 0.3rem;
    padding: 0.4rem 0.5rem;
    background: rgba(255,255,255,0.04);
}

.code-header span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted);
}

.code-header span:nth-child(1) { background: var(--blue); }
.code-header span:nth-child(2) { background: var(--green); }

.code-body {
    margin: 0;
    padding: 0.7rem 0.8rem;
    font-family: "Consolas", "Courier New", monospace;
    font-size: 0.7rem;
    line-height: 1.5;
    color: var(--text-muted);
    white-space: pre;
}

.code-body .kw { color: var(--blue); }
.code-body .fn { color: var(--text-light); }
.code-body .cn { color: var(--green); }

.scene-sw .code-window { max-width: 480px; }
.scene-sw .code-header span { width: 12px; height: 12px; }
.scene-sw .code-body { font-size: 1.1rem; padding: 1.2rem 1.4rem; }

@keyframes ledBlink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.35; }
}

.logo-text {
    font-size: clamp(3rem, 10vw, 6rem);
    font-weight: 900;
    margin: 0;
    letter-spacing: 0.02em;
    background: linear-gradient(90deg, var(--blue), var(--green));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    filter:
        drop-shadow(1px 0 0 var(--bg-dark))
        drop-shadow(-1px 0 0 var(--bg-dark))
        drop-shadow(0 1px 0 var(--bg-dark))
        drop-shadow(0 -1px 0 var(--bg-dark))
        drop-shadow(0 0 10px var(--bg-dark));
}

.logo-sub {
    margin: 0.2rem 0 1.5rem;
    letter-spacing: 0.35em;
    font-size: 1rem;
    color: var(--text-light);
    text-shadow:
        0 0 4px var(--bg-dark),
        0 0 8px var(--bg-dark),
        0 0 12px var(--bg-dark);
}

.tagline {
    max-width: 32rem;
    color: var(--text-muted);
    font-size: 1.05rem;
    line-height: 1.5;
}

/* ---- Content sections ---- */

.section {
    max-width: 60rem;
    margin: 0 auto;
    padding: 2.5rem 1.5rem;
}

.section.alt { background: var(--bg-panel); max-width: none; }
.section.alt > * { max-width: 42rem; margin-left: auto; margin-right: auto; }

.section h2 {
    font-size: 1.8rem;
    margin-bottom: 2rem;
    text-align: center;
    background: linear-gradient(90deg, var(--blue), var(--green));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline-block;
    width: 100%;
}

.services-stack {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.cards-row-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.card {
    background: var(--bg-panel);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 0.6rem;
    padding: 1.5rem;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.card:hover {
    transform: translateY(-3px);
    border-color: rgba(53,212,136,0.4);
}

.card-wide { margin-top: 0; }
.card-wide + .card-wide { margin-top: 1rem; }

.card-icon {
    width: 100%;
    height: 100px;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-icon-side {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    text-align: left;
}

.card-icon-fixed {
    width: 280px;
    flex: 0 0 auto;
    margin-bottom: 0;
}

.card-text { flex: 1; }
.card-text h3 { margin-top: 0; }

.code-window-small .code-header { padding: 0.25rem 0.4rem; }
.code-window-small .code-body { padding: 0.3rem 0.5rem; font-size: 0.6rem; }

.card h3 {
    margin-top: 0;
    color: var(--text-light);
    font-size: 1.15rem;
}

.card p {
    color: var(--text-muted);
    line-height: 1.5;
    margin-bottom: 0;
}

.about-text {
    text-align: center;
    color: var(--text-muted);
    line-height: 1.7;
    font-size: 1.05rem;
}

.about-text p + p {
    margin-top: 1rem;
}

.about-name {
    margin: 1.25rem 0 0.25rem;
    font-size: 1.15rem;
    color: var(--text-light);
}

.about-wrap {
    display: flex;
    align-items: center;
    gap: 2.5rem;
    max-width: 52rem;
    margin: 0 auto;
}

.about-wrap .about-text { text-align: left; }

.about-photo {
    flex: 0 0 auto;
    width: 160px;
    height: 160px;
    border-radius: 50%;
    overflow: hidden;
    position: relative;
    border: 2px solid rgba(53,212,136,0.4);
    box-shadow: 0 0 25px rgba(47,143,224,0.25);
}

.about-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(1) contrast(1.1) brightness(0.9);
}

.about-photo::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(160deg, var(--blue), var(--green));
    mix-blend-mode: color;
    opacity: 0.85;
}

/* contact section */

.contact-wrap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    max-width: 52rem;
    margin: 0 auto;
    text-align: left;
}

.contact-info p { color: var(--text-muted); margin: 0.3rem 0; }
.contact-info a { color: var(--green); text-decoration: none; }
.contact-info a:hover { text-decoration: underline; }

/* shared forms (contact, admin, forum) */

.site-form { max-width: 34rem; }
.contact-form { max-width: none; }

.site-form label { display: block; color: var(--text-muted); margin-bottom: 1rem; }
.site-form input, .site-form textarea, .site-form select {
    width: 100%;
    margin-top: 0.3rem;
    padding: 0.5rem 0.6rem;
    background: var(--bg-panel);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 0.3rem;
    color: var(--text-light);
    font-family: inherit;
    font-size: 1rem;
}

.site-form button {
    background: linear-gradient(90deg, var(--blue), var(--green));
    color: var(--bg-dark);
    border: none;
    padding: 0.6rem 1.4rem;
    border-radius: 0.3rem;
    font-weight: 700;
    cursor: pointer;
}

.site-form button:hover { opacity: 0.9; }

.hp-field { position: absolute; left: -9999px; }

.link-button {
    background: none;
    border: none;
    padding: 0;
    color: var(--green);
    text-decoration: underline;
    cursor: pointer;
    font: inherit;
}

/* blog / dev posts */

.blog-list { display: flex; flex-direction: column; gap: 1.2rem; max-width: 44rem; margin: 0 auto; }
.blog-card { text-align: left; }
.blog-date { color: var(--text-muted); font-size: 0.85rem; margin: 0 0 0.4rem; }
.read-more { color: var(--green); text-decoration: none; font-size: 0.9rem; }
.read-more:hover { text-decoration: underline; }
.blog-post { max-width: 44rem; margin: 0 auto; text-align: left; }
.blog-body { color: var(--text-light); line-height: 1.7; margin-top: 1rem; }

.category-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    max-width: 44rem;
    margin: 0 auto 1.2rem;
}

.category-pill {
    display: inline-block;
    padding: 0.3rem 0.9rem;
    border-radius: 1rem;
    border: 1px solid rgba(255,255,255,0.12);
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.85rem;
    transition: color 0.2s ease, border-color 0.2s ease;
}

.category-pill:hover { color: var(--text-light); }

.category-pill-active {
    color: var(--bg-dark);
    background: var(--green);
    border-color: var(--green);
}

.status-badge {
    display: inline-block;
    margin-left: 0.6rem;
    padding: 0.1rem 0.6rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.status-tervezett { background: rgba(47,143,224,0.2); color: var(--blue); }
.status-folyamatban { background: rgba(53,212,136,0.2); color: var(--green); }
.status-kesz { background: rgba(255,255,255,0.12); color: var(--text-light); }

/* forum */

.forum-table td, .forum-table th { text-align: left; }
.forum-posts { display: flex; flex-direction: column; gap: 1rem; max-width: 44rem; margin: 0 auto 1.5rem; }
.forum-post { text-align: left; }

/* admin table (shared) */

.admin-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 2rem;
}

.admin-table th, .admin-table td {
    border: 1px solid rgba(255,255,255,0.08);
    padding: 0.5rem 0.7rem;
    text-align: left;
    color: var(--text-muted);
}

.admin-table th { color: var(--text-light); background: var(--bg-panel); }

/* sub-pages (naplo/fejlesztesek/forum/gdpr/admin) */

.navbar-sub { background: var(--bg-panel); }
.subpage { max-width: 70rem; margin: 0 auto; padding: 2rem 1.5rem 4rem; }
.subpage .section { padding: 0; max-width: none; }

footer {
    text-align: center;
    padding: 2rem 1rem;
    color: var(--text-muted);
    font-size: 0.85rem;
    border-top: 1px solid rgba(255,255,255,0.06);
}

footer a { color: var(--green); text-decoration: none; }
footer a:hover { text-decoration: underline; }

/* photo gallery (naplo uploads) */

.photo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 0.8rem;
    margin: 1rem 0;
}

.photo-thumb {
    position: relative;
    display: block;
    border-radius: 0.4rem;
    overflow: hidden;
    background: var(--bg-panel);
    border: 1px solid rgba(255,255,255,0.08);
}

.photo-thumb img {
    width: 100%;
    height: 110px;
    object-fit: cover;
    display: block;
}

.photo-grid-view .photo-thumb img { height: 140px; }

.photo-meta {
    display: block;
    padding: 0.3rem 0.4rem;
    font-size: 0.7rem;
    color: var(--text-muted);
}

.photo-delete {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.2rem 0.4rem 0.4rem;
    font-size: 0.75rem;
    color: #e0704f;
}

.blog-card-with-cover { display: flex; gap: 1rem; align-items: stretch; }
.blog-cover { flex: 0 0 140px; border-radius: 0.4rem; overflow: hidden; }
.blog-cover img { width: 140px; height: 100%; object-fit: cover; display: block; }
.blog-card-body { flex: 1; }

/* AI task board (kanban) */

.kanban {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    align-items: start;
}

.kanban-col {
    background: var(--bg-panel);
    border-radius: 0.5rem;
    padding: 0.8rem;
    min-height: 120px;
}

.kanban-col-title {
    margin: 0 0 0.8rem;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid rgba(255,255,255,0.08);
}

.kanban-count {
    background: rgba(255,255,255,0.08);
    border-radius: 1rem;
    padding: 0.05rem 0.55rem;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.kanban-col-uj { border-bottom-color: var(--blue); }
.kanban-col-folyamatban { border-bottom-color: #e0b02f; }
.kanban-col-kesz { border-bottom-color: var(--green); }
.kanban-col-hiba { border-bottom-color: #e0704f; }

.kanban-cards { display: flex; flex-direction: column; gap: 0.7rem; }

.kanban-card {
    display: block;
    background: var(--bg-dark);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 0.4rem;
    padding: 0.6rem 0.7rem;
    text-decoration: none;
    color: var(--text-light);
    transition: border-color 0.2s ease, transform 0.2s ease;
}

.kanban-card:hover { border-color: rgba(53,212,136,0.4); transform: translateY(-2px); }
.kanban-card p { color: var(--text-muted); font-size: 0.85rem; margin: 0.3rem 0; }
.kanban-empty { color: var(--text-muted); font-size: 0.85rem; }

.kanban-tag {
    display: inline-block;
    background: rgba(47,143,224,0.18);
    color: var(--blue);
    border-radius: 1rem;
    padding: 0.05rem 0.55rem;
    font-size: 0.7rem;
    margin: 0.2rem 0.3rem 0.2rem 0;
}

.status-badge.kanban-col-uj { background: rgba(47,143,224,0.2); color: var(--blue); }
.status-badge.kanban-col-folyamatban { background: rgba(224,176,47,0.2); color: #e0b02f; }
.status-badge.kanban-col-kesz { background: rgba(53,212,136,0.2); color: var(--green); }
.status-badge.kanban-col-hiba { background: rgba(224,112,79,0.2); color: #e0704f; }

.task-result {
    background: var(--bg-panel);
    border-left: 3px solid var(--green);
    padding: 0.8rem 1rem;
    border-radius: 0.3rem;
}

@media (max-width: 640px) {
    .nav-links a { margin-left: 1rem; font-size: 0.85rem; }
    .navbar { padding: 1rem; }
    .lang-link { font-size: 0.7rem; padding: 0.1rem 0.3rem; }
    .about-wrap { flex-direction: column; text-align: center; }
    .contact-wrap { grid-template-columns: 1fr; }
    .cards-row-3 { grid-template-columns: 1fr; }
    .card-icon-side { flex-direction: column; align-items: stretch; text-align: center; }
    .card-icon-fixed { width: 100%; height: 100px; margin-bottom: 1rem; }
    .blog-card-with-cover { flex-direction: column; }
    .blog-cover, .blog-cover img { width: 100%; height: 160px; }
    .kanban { grid-template-columns: 1fr; }
}